Born to a Jamaican father and a Japanese mother, maybe sprinter Aska Cambridge has a slight edge genetically over most other runners in Japan.
But that fact alone isn't enough to make him an elite athlete. He needs to get physically stronger.
In the winter of 2014, Cambridge had the chance to train in Kingston, Jamaica, at Racers Track Club, home of the Caribbean nation's top runners, including Usain Bolt and Yohan Blake. The opportunity made him realize how vulnerable he was as an athlete.